Sorry its so long, you don't have to read it I just need to vent, If you do read if sorry it may not make sense..

I can not physically stand being in the same room as my sister!

She is a horrible spoilt little brat!

Everything about her makes me want to punch her. We have never particularly got on, but Oh my... It's getting worse.

Even my Nan agrees with me, and my step dad to an extent.

She is just a horrible, selfish, ungrateful nasty little bitch.

She is nearly 18 (End of April)

We had an argument the other day and she really crossed the line, bring LO's 'dad' into it (He doesn't want anything to do with LO), she blamed me saying I have failed him as a mother already.
- She has watched me fight with FOB to be involved etc, and she has seen how hard I have tried then she threw it at me in an argument.

She claimed how because I still live at home with my parents, that it makes me a bad mother and that my son will be given to any one who will take him.
- My son will be cared for by me and only me, regardless to where i'm living.

For her 18th birthday my mam got her a new phone contract which ends in 2 year and works out at £550ish. Then she is having a party. Which is costing around £250. Then my mam is giving her some money towards a new outfit, and some hair dressing things (She has just started training to be a hair dresser)

That is a lot of money!

To make matters worse, my mam is trying to get rid of some of her 'debt' and she was really worrying. We have a littlewoods catalogue which currently stands at about £1400, £400 of that is mine, which I have been paying £200 a month off, so in 2 month mine would have been paid.
But it still left my mam with about £1000 (Plus there was extra interest due to be added on in june so it would be about £1500) And she was so worried she couldn't afford it.
So I offered to take over the payments for it as i'm used to paying £200 a month, so I thought i'd be nice and carry on paying it...

All this is fine, but I just feel like i'm not appreciated enough in the house anymore.

I can't even talk to my mam because she says i'm being silly and that its just hormones etc. She says I have to get used to not getting what I used to because of LO coming along, but its not even about that.

I feel like, it's thanks to me that my sister still gets what she gets because I've taken away half of my mams debt, and i still don't get thanked for it.
I just get abuse from my sister.

She is like an immature little child, and I really think I'm going to snap, and I don't know what to do about it anymore.

I just feel like crying